I'm not going to throw out a number of what "I think" it should be worth. My opinion on a price doesn't mean chit & neither should any of these other so called Buick experts on here. Because, you know what? A car is worth whatever a buyer is willing to pay.
The only problem I see with you getting a good price out of the cars is.... there is WAYYYY too much personal taste flare about it. The average joe looking for an '87 GN is not going to want two tone paint, blue wire loom running everywhere(which I will say is epic ricer gay
) leather seats, & flashy chrome.
The average joe looking to buy a GN wants black. 'Nuff said. GLWS!!